Home / 13,955.91-20,937.27-6,939.23

Finding the Fourth Proportional to 13,955.91, 20,937.27 and 6,939.23

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Solution

The fourth proportional to 13,955.91, 20,937.27 and 6,939.23 is: 10,410.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.91 : 20,937.27 = 6,939.23 : x
  2. Step 2: Convert to fraction form
    13,955.91/20,937.27 = 6,939.23/x
  3. Step 3: Cross multiply
    13,955.91x = 20,937.27 × 6,939.23
  4. Step 4: Simplify right side
    13,955.91x = 145,288,427.42
  5. Step 5: Solve for x
    x = 145,288,427.42/13,955.91
  6. Step 6: Final answer
    x = 10,410.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.